When a blood vessel breaks, platelets stick together and start the clotting process.

Serotonin on the surface of the platelets is involved in this process. Celexa (citalopram) and other antidepressants which effect serotonin may alter clotting, and lead to bruising. If this happens to you, tell your doctor. You may need to adjust your dose of Aspirin and/or celexa, (citalopram) check for a bleeding problem, or change meds.

In brief:
Yes

When a blood vessel breaks, platelets stick together and start the clotting process.

Serotonin on the surface of the platelets is involved in this process. Celexa (citalopram) and other antidepressants which effect serotonin may alter clotting, and lead to bruising. If this happens to you, tell your doctor. You may need to adjust your dose of Aspirin and/or celexa, (citalopram) check for a bleeding problem, or change meds.
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